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① a. -Hi - Hello!
② b. - How are you? - I'm fine. Thank you.
③ c. - Good afternoon, Miss Li. - Good afternoon, Ken.
a. Thank you. b. Miss c. How are you? d. Goodbye. e. Fine.
: Good morning,Liu.
: Good morning, Jack.
: I'm fine. And you?
: Thanks. Goodbye.
:
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②
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